Signaling system.



J. B. EDWARDS.

SIGNALING SYSTEM. APPLICATION FILED JUNE 24, 150s.

Patented Apr. 6, 1909.

2 SHEETS-SHEET 1 Tr J. B. EDWARDS. SIGNALING SYSTEM.

APPLIoATIoN FILED JUNI: 24, 190s.

Patented Apr. 6, 1909.

2 SHEETS-SHEET 2.

@mounten l attenua? UNlirici) sTATEs rAfrnN ons' JAMES E. EDWARDS, COLUMBIA, SOUTH CAROLINA, ASSIGNOR OF ONE-HALF TO ALEXANDER ROWLAND, OF COLUMBIA, SOUTH CAROLINA.

sreNALING SYSTEM.

No. amavo;

Application filed June 24 To all whom .it may concern.'

e it known that I, JAMES B. EDwARDs', a citizen of the United States, residing at Columbia, in the county of Richland and State of South Carolina have invented new and useful Impxrovements in Signaling Systems, of which t e following is a specification.

The inventionrelates to an improvement insignaling systems and apparatus designed primarily or 'application and control at a switch juncture with the main road, the oonstruction providing a means whereby when the switch is open a danger signal is automatically set against the oncoming train and an automatic device is projected to insure o eration of the air brakes and the stopping roadbed beyon o the train.

The invention will be described in the following specification, reference being. had particularly to the accompanying drawings, in Whichz- Figure 1 is a plan illustrating the construction and arrangement ofthe signaling apparatus. Fig. f 2 is a longitudinal section throughthe signal box. Fig. 3 is a transverse section through the. same. `Fig. 4 is a plan of the same. Fig. 5 is a view in elevation, partl in section, illustrating the application of t e relief cock trip. Y

Referring particularly to the accompanying drawings, my improved apparatus comprises a signal box 1 located at a point remote rom the switch points 2, the si al box being located adjacent the tracks 3 of the main line in advancejof the switch.

The switch box comprises a rectangular casing 4 having a removable cover late 5, this casing'bein designed to be sun in the and immediately adjacent one of the rails. Within the casing and arranged transversely of the same is mounted a shaft 6, on which near one e'nd is secured a lever 7, the relatively rear end of the lever carrying a weight 8, while the forward end carries a trip rod 9 normally seated in and o erable throu h an opening 1() in the cover p ate. Secured upon the cover plate is the signal standard or post 11, carrying at its upper end a fixed signal or semap iore 12 preferably of 'White color to indicate clear, the rear or end of the signal carrying a lantern recess 13 for night signaling. Mounted upon a stud 14 projecting from the signal post is a signal or semaphore 15 correspond- Specification of Letters Patent.

.1903. serial No. 440,167.

Patented April 6, 1909.

ing in size and shape to the signal l2, being, however, of a red or danger color, the relasignal is in set or danger position, is disposed in front of the lantern carried by the white signal to show a red or danger light to the oncoming train.

The shaft 6 adjacent the end remote from radiatin from the shaft, said lugs being preferab y disposed at right angles to each other and the former being adapt-ed for connection with the switch o erating means, as hereinafter described. 'IIfie lug 19I is connected through a link 20 with a rod 21, which extends through the cover of the casing and is connected with an offset 22 depending from the relatively lower edge ofthe danger signal 15. The arrangement of the 'parts is such that when the shaft' isoperated to elevate the trip 9, the rod 21 is also pushed upwardly with the effect to arrange the signal 15 in danger indicating position.

The lug 18 is connected to the switch operating mechanism preferably by the means illustrated in Fig. 1, wherein the tie bar 23 of the switch points is extended beyond the rails and formed with an upwardly extending lug 24. Mounted upona supporting plate 25 bridging the ties adjacent the switch points is an angle lever 26, one end of said lever beingformed with a longitudinally ofthe tie bar, the opposing end of the angle lever being connected to a flexible connection, as a wire rope 28, which is guided in an idler 29 mounted on the supporting plate, and extends from said idler towar( the switch stand 1. Adjacent the switch'stand the terminal of the connector 28 is secured to a threaded rod 3() arranged to engage the operating member 31 of a turn buckle, a complementary, though opposingly threaded rod 32 engaging the opposite end of the member and extending within the case of the cated end 33 arranged to engage the lug 18.

The lugs 18 and 19 are referably arranged in spaced relation lengt wise the shaft 6, and the arrangen'ient of theparts is such that when the switch points are closed to mainexerted upon the connector 28 with the effect tively rear end of the signal having a frame 16 to carry a red target 17, which, when the disposed slot 27 adapted to receive the lug 211 switch box, wherein it terminates in a biurtain the continuity of the main line a pull is.

the lever 7 is provided with lugs 18 and 19 sol to rock the shaft 6 against the influence of the weight 8 and thereby depress the trip 9 and move the lug 19 downwardly with the eti ect to lower the danger signal. When the f switch points` are operated to open the switch,

t-rip is arranged immediately adjacent the track rail in position lo engage and turn a relief cock 34 of the train pipe, whereby said pipe is bled and the brakes are automatically lset thereby stopping the train before reaching the switch.

From the above description it will be obvious that as long as the switch is closed the tension of the connector 28 will maintain the trip 9 witl'idrawnand the signal 15 lowered or in clear position, thereby permitting the advancing engineer to see the white signal andto be thereby advised that the switch is closed. If, however, the switch is open the tension on the connector 28 is released and the weight 8 serves to move all parts to operative positions. lf for any reason the connector' 28 should become broken and thereby prevent movement of the signaling device under the influence of the switch, it will be seen that the weight 8 will thereupon automatically act to set the parts in danger position, thereby providing a check against the inoperativeness of the device through the breaking of the connector.

The movable parts are protected within the casing 4, which, ofcourse, is to be weather proof, and the connector 28 and connectcd parts are also to be suitably housed as is usual in signal wires or the like.

Having thus described the invention what is claimed as new, is-

1. The combination with a switch andL a signal, of a signal box arranged adjacent the slgnal, a shaft mounted for movement Within the box, a leveriixed lntermedlate lts ends on the shaft, a weight carried by one end of the lever, a trip rod carried by the opposite signal, of a signal box arranged, adjacent the signal, a shaft mounted for movement within the box, a lever fixed intermediate its ends on the shaft, a weight carried by one end of,

the lever, a trip rod carried by the opposite end of' the lever and adapted to be projected through the upper wall of the box in the lnovement of thc lever in one direction, a

connection leadinf from the switch a 1ulr projecting radially from the shaft and fixed to the vswitch connection, a connection lead-` ing from the signal, and a lug projecting radially from the shaft and secured to the signal connection, said lugsv projecting from the vshaft at right angles to each other.

In testimony whereof I aiiix my, signature in presence of two witnesses.

JAMES B. EDWARDS.

Wi tnesscs: I

K.. ALLEN, E. T. BoEHMEn.' 

